:root {
  color-scheme: light;
  --ink: #17211b;
  --muted: #5d6b62;
  --line: #d8ded8;
  --surface: #ffffff;
  --page: #f5f7f2;
  --accent: #1f7a4d;
  --accent-dark: #155a38;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background: var(--page);
  color: var(--ink);
  font-family: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 64px;
  padding: 0 28px;
  border-bottom: 1px solid var(--line);
  background: var(--surface);
}

.topbar {
  gap: 20px;
}

.topbar > div,
.topbar nav {
  display: flex;
  align-items: center;
  gap: 14px;
}

.topbar span {
  color: var(--muted);
  font-size: 0.92rem;
}

main {
  width: min(920px, calc(100% - 32px));
  margin: 48px auto;
}

.app-shell {
  min-height: 100vh;
}

.admin-layout {
  display: grid;
  grid-template-columns: 220px minmax(0, 1fr);
  gap: 28px;
  width: min(1180px, calc(100% - 32px));
  margin: 32px auto;
}

.sidebar {
  align-self: start;
}

.tabs {
  display: grid;
  gap: 6px;
}

.tab {
  display: flex;
  align-items: center;
  min-height: 44px;
  padding: 0 14px;
  border-radius: 6px;
  color: var(--muted);
  text-decoration: none;
}

.tab:hover {
  background: #edf2ed;
  color: var(--ink);
}

.tab.active {
  background: var(--surface);
  color: var(--accent-dark);
  box-shadow: inset 3px 0 0 var(--accent);
}

.workspace {
  min-width: 0;
}

.workspace-header {
  margin-bottom: 24px;
}

.workspace-header h1 {
  font-size: clamp(2rem, 4vw, 2.75rem);
}

.workspace-header p {
  max-width: 680px;
}

.placeholder-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(280px, 0.8fr);
  gap: 18px;
}

.placeholder-panel {
  min-height: 220px;
  padding: 24px;
  border: 1px dashed #bcc8bd;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.62);
}

.placeholder-panel h2 {
  margin: 0 0 10px;
  font-size: 1.05rem;
}

.login {
  display: grid;
  min-height: 100vh;
  place-items: center;
  margin: 0 auto;
}

.panel {
  width: min(560px, 100%);
  padding: 32px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
}

.eyebrow {
  margin: 0 0 8px;
  color: var(--accent);
  font-size: 0.82rem;
  font-weight: 700;
  text-transform: uppercase;
}

h1 {
  margin: 0 0 12px;
  font-size: clamp(2rem, 5vw, 3.25rem);
  line-height: 1.05;
}

p {
  color: var(--muted);
  line-height: 1.65;
}

a {
  color: var(--accent-dark);
  font-weight: 700;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  margin-top: 14px;
  padding: 0 18px;
  border-radius: 6px;
  background: var(--accent);
  color: #ffffff;
  text-decoration: none;
}

dl {
  display: grid;
  gap: 14px;
  margin: 24px 0 0;
}

dl div {
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: 16px;
  padding-top: 14px;
  border-top: 1px solid var(--line);
}

dt {
  color: var(--muted);
  font-weight: 700;
}

dd {
  margin: 0;
  overflow-wrap: anywhere;
}

@media (max-width: 560px) {
  header {
    padding: 0 16px;
  }

  .panel {
    padding: 24px;
  }

  dl div {
    grid-template-columns: 1fr;
    gap: 4px;
  }
}

@media (max-width: 760px) {
  .topbar {
    align-items: flex-start;
    flex-direction: column;
    justify-content: center;
    padding: 14px 16px;
  }

  .topbar nav {
    width: 100%;
    justify-content: space-between;
  }

  .admin-layout {
    grid-template-columns: 1fr;
    gap: 20px;
    margin-top: 20px;
  }

  .tabs {
    display: flex;
    gap: 8px;
    overflow-x: auto;
    padding-bottom: 4px;
  }

  .tab {
    flex: 0 0 auto;
    box-shadow: inset 0 -2px 0 transparent;
  }

  .tab.active {
    box-shadow: inset 0 -3px 0 var(--accent);
  }

  .placeholder-grid {
    grid-template-columns: 1fr;
  }
}